IPCS INCHEM Home
FURAN
ICSC: 1257
Peer-Review Status: 11.04.2014 Validated
Furfuran
Divinylene oxide
Oxacyclopentadiene
CAS #: 110-00-9 RTECS #: LT8524000
UN #: 2389
EC #: 603-105-00-5
EINECS #: 203-727-3
    Formula: C4H4O
Molecular mass: 68.1

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Extremely flammable.  NO open flames, NO sparks and NO smoking.  Use water spray, powder, alcohol-resistant foam, carbon dioxide. 
EXPLOSION Vapour/air mixtures are explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS! AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Sore throat. Cough. Chest tightness. Shortness of breath. Laboured breathing.  Use closed system or breathing protection.  Fresh air, rest. Half-upright position. Administration of oxygen may be needed. Refer immediately for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Notes.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: self-contained breathing apparatus. Do NOT wash away into sewer. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.  Airtight. 
EC Classification
Symbol: F+, T; R: 45-12-19-20/22-38-48/22-68-52/53; S: 53-45-61; Note: E 
UN Classification
UN Hazard Class: 3; UN Pack Group: I 
GHS Classification
Signal: Danger
Extremely flammable liquid and vapour
Toxic if inhaled
Suspected of causing genetic defects
May cause cancer
May cause damage to liver and kidneys through prolonged or repeated exposure
Harmful to aquatic life with long lasting effects 
flam;flameskull;toxiccancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F4; R1.  Fireproof. Well closed. Cool. Keep in the dark. Store only if stabilized. Separated from strong oxidants and acids. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
CLEAR COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. TURNS BROWN ON STANDING. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Contact with air generates explosive peroxides. Reacts with oxidants and acids. This generates fire and explosion hazard. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):.
MAK: Carcinogen category: 2; Skin absorption (H); (DFG 2013). 

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of short-term exposure
The substance may be irritating to the skin, eyes and respiratory tract. Exposure could cause severe lung damage. See Notes. 

Effects of long-term or repeated exposure
The substance may have effects on the liver and kidneys. This may result in impaired functions. This substance is possibly carcinogenic to humans. May cause genetic damage in humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 31.3°C
Melting point: -85.6°C
Relative density (water = 1): 0.94
Solubility in water, g/l at 25°C: 10
Vapour pressure, kPa at 20°C: 65.8
Relative vapour density (air = 1): 2.3
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.9
Flash point: -35°C
Explosive limits, vol% in air: 2.3-14.3
Auto-ignition temperature: 390°C
Octanol/water partition coefficient as log Pow: 1.34
Viscosity: 0.38 mPa/s 
The substance is harmful to aquatic organisms. 

NOTES
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
An added stabilizer or inhibitor can influence the toxicological properties of this substance; consult an expert.
Check for peroxides prior to distillation; eliminate if found. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations
       Furan (IARC Summary & Evaluation, Volume 63, 1995)